81             keys: []  property
88             const assignment = Object.keys(opt).map(function (key) {
101             flags.keys.push(key);
105             flags.keys.push(key);
109             flags.keys.push(key);
113             flags.keys.push(key);
117             flags.keys.push(key);
121             flags.keys.push(key);
127                     flags.keys.push(key);
135                     flags.keys.push(key);
158         Object.keys(defaults).forEach(function (key) {
381         Object.keys(flags.counts).forEach(function (key) {
392             Object.keys(argv).filter(key => key !== '--' && key.includes('-')).forEach(key => {
398             [].concat(...Object.keys(aliases).map(k => aliases[k])).forEach(alias => {
538                 const keys = [key].concat(flags.aliases[key] || []);
539                 keys.forEach(function (key) {
605             Object.keys(flags.configs).forEach(function (configKey) {
643             Object.keys(config).forEach(function (key) {
675             Object.keys(env).forEach(function (envVar) {
678                     const keys = envVar.split('__').map(function (key, i) {
684 …       if (((configOnly && flags.configs[keys.join('.')]) || !configOnly) && !hasKey(argv, keys)) {
685                         setArg(keys.join('.'), env[envVar]);
693             Object.keys(argv).forEach(function (key) {
712             flags.keys.forEach((key) => {
722             Object.keys(defaults).forEach(function (key) {
735         function hasKey(obj, keys) {  argument
738                 keys = [keys.join('.')];
739             keys.slice(0, -1).forEach(function (key) {
742             const key = keys[keys.length - 1];
748         function setKey(obj, keys, value) {  argument
751                 keys = [keys.join('.')];
752             keys.slice(0, -1).forEach(function (key) {
776             const key = sanitizeKey(keys[keys.length - 1]);
777             const isTypeArray = checkAllAliases(keys.join('.'), flags.arrays);
816                 Object.keys(obj || {}).forEach(function (key) {
853             const keys = Object.keys(flag);
854             const setAlias = toCheck.find(key => keys.includes(key));
858             const flagsKeys = Object.keys(flags);
962             Object.keys(flags.counts).find(key => {
992     Object.keys(aliases).forEach(function (key) {